DecoderException in ResourcePackPackets when joining Bedrock Realms on 1.21.11

[chi20253032]

General Information

dump url[https://dump.viaversion.com/540dadc3464b89a73e9562e95f3cac6f3d4c668e5102462348dec37d6a60cbe8]
crash report url[https://mclo.gs/Xcr9BkE]

Bug Description

When trying to join a Bedrock Edition Realm using ViaFabricPlus on Minecraft 1.21.11, the connection fails with a DecoderException.
The error points to net.raphimc.viabedrock.protocol.packet.ResourcePackPackets.
It seems like a packet handling issue specifically related to Bedrock resource packs.

Steps to Reproduce

1. Launch Minecraft 1.21.11 with ViaFabricPlus installed.
2. Open the Multiplayer menu and select "ViaFabricPlus" (Bedrock/Realms).
3. Attempt to connect to a Bedrock Realm.
4. The screen shows the Internal Exception error instead of joining the world.

Expected Behavior

The game should be able to process the resource pack packets and join the Bedrock Realm successfully without crashing or disconnecting.

[Barvalg]

[Exterminate5573]

Do you have access to the resource pack that caused the disconnect?

[chi20253032]

No, I don't have access to the resource pack data because it is provided/handled by ViaFabricPlus directly.

[RaphiMC]

Are you the owner of the Realm?

[chi20253032]

Yes

[RaphiMC]

Please invite RaphiMC to the Realm, so I can dump the resource pack data. It might take a week or two before I get to it, because I have to update ViaBedrock to Bedrock 1.26.10 first to be able to join any Realms

[chi20253032]

Just to be sure, is your official Minecraft Bedrock Edition gamertag exactly "RaphiMC"? I'll add you and send an invite to my Realm once you confirm.

[RaphiMC]

Just to be sure, is your official Minecraft Bedrock Edition gamertag exactly "RaphiMC"? I'll add you and send an invite to my Realm once you confirm.

yes

[chi20253032]

I sent a friend request and a Realms invitation to RaphiMC using the integrated version.

[RaphiMC]

I received and accepted the invite. I will look into the issue sometime this week and let you know once I am done with it

[RaphiMC]

I dumped the resource packs and I am now working on a fix. I also left the Realm.

[RaphiMC]

Fixed it in ViaBedrock. The fix will be included in the next ViaFabricPlus build